spotube/lib/pages/lyrics/plain_lyrics.dart

import 'package:collection/collection.dart';
import 'package:flutter/material.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:gap/gap.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:palette_generator/palette_generator.dart';
import 'package:spotube/collections/spotube_icons.dart';
import 'package:spotube/components/lyrics/zoom_controls.dart';
import 'package:spotube/components/shared/shimmers/shimmer_lyrics.dart';
import 'package:spotube/extensions/artist_simple.dart';
import 'package:spotube/extensions/constrains.dart';
import 'package:spotube/extensions/context.dart';

import 'package:spotube/provider/proxy_playlist/proxy_playlist_provider.dart';
import 'package:spotube/provider/spotify/spotify.dart';

class PlainLyrics extends HookConsumerWidget {
  final PaletteColor palette;
  final bool? isModal;
  final int defaultTextZoom;
  const PlainLyrics({
    required this.palette,
    this.isModal,
    this.defaultTextZoom = 100,
    super.key,
  });

  @override
  Widget build(BuildContext context, ref) {
    final playlist = ref.watch(proxyPlaylistProvider);
    final lyricsQuery = ref.watch(syncedLyricsProvider(playlist.activeTrack));
    final mediaQuery = MediaQuery.of(context);
    final textTheme = Theme.of(context).textTheme;

    final textZoomLevel = useState<int>(defaultTextZoom);

    return Stack(
      children: [
        Column(
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: [
            if (isModal != true) ...[
              Center(
                child: Text(
                  playlist.activeTrack?.name ?? "",
                  style: mediaQuery.mdAndUp
                      ? textTheme.displaySmall
                      : textTheme.headlineMedium?.copyWith(
                          fontSize: 25,
                          color: palette.titleTextColor,
                        ),
                ),
              ),
              Center(
                child: Text(
                  playlist.activeTrack?.artists?.asString() ?? "",
                  style: (mediaQuery.mdAndUp
                          ? textTheme.headlineSmall
                          : textTheme.titleLarge)
                      ?.copyWith(color: palette.bodyTextColor),
                ),
              )
            ],
            Expanded(
              child: SingleChildScrollView(
                child: Center(
                  child: Padding(
                    padding: const EdgeInsets.all(8.0),
                    child: Builder(
                      builder: (context) {
                        if (lyricsQuery.isLoading || lyricsQuery.isRefreshing) {
                          return const ShimmerLyrics();
                        } else if (lyricsQuery.hasError) {
                          return Container(
                            alignment: Alignment.center,
                            padding: const EdgeInsets.all(16),
                            child: Column(
                              mainAxisSize: MainAxisSize.min,
                              children: [
                                Text(
                                  context.l10n.no_lyrics_available,
                                  style: textTheme.bodyLarge?.copyWith(
                                    color: palette.bodyTextColor,
                                  ),
                                  textAlign: TextAlign.center,
                                ),
                                const Gap(26),
                                const Icon(SpotubeIcons.noLyrics, size: 60),
                              ],
                            ),
                          );
                        }

                        final lyrics =
                            lyricsQuery.asData?.value.lyrics.mapIndexed((i, e) {
                          final next = lyricsQuery.asData?.value.lyrics
                              .elementAtOrNull(i + 1);
                          if (next != null &&
                              e.time - next.time >
                                  const Duration(milliseconds: 700)) {
                            return "${e.text}\n";
                          }

                          return e.text;
                        }).join("\n");

                        return AnimatedDefaultTextStyle(
                          duration: const Duration(milliseconds: 200),
                          style: TextStyle(
                            color: palette.bodyTextColor,
                            fontSize: 24 * textZoomLevel.value / 100,
                            height: textZoomLevel.value < 70
                                ? 1.5
                                : textZoomLevel.value > 150
                                    ? 1.7
                                    : 2,
                          ),
                          child: SelectableText(
                            lyrics == null && playlist.activeTrack == null
                                ? "No Track being played currently"
                                : lyrics ?? "",
                            textAlign: TextAlign.center,
                          ),
                        );
                      },
                    ),
                  ),
                ),
              ),
            ),
          ],
        ),
        Align(
          alignment: Alignment.bottomRight,
          child: ZoomControls(
            value: textZoomLevel.value,
            onChanged: (value) => textZoomLevel.value = value,
            min: 50,
            max: 200,
          ),
        ),
      ],
    );
  }
}